<template>
    <div class="login_container">
         <!-- 登录盒子  登录具体页面 -->
        <div class="login_box">
                <!-- 默认头像 -->
            <div class="avater_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区 -->
            <el-form ref="loginFormRef" class="login_form" :model="loginForm" :rules="loginFormRules">
                <!-- 用户名  -->
                <el-form-item prop="username">
                    <!-- 这里的图标用的是阿里的 -->
                    <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username" ></el-input>
                </el-form-item>
                <!-- 密码 -->
                 <el-form-item prop="password">
                    <el-input type="password" prefix-icon="iconfont icon-3702mima" v-model="loginForm.password"></el-input>
                </el-form-item>
                <!-- 按钮区域 -->
                 <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
    data(){
        return {
        //这是登录表单的数据绑定对象
            loginForm:{
                username:'admin',
                password:'123456'
            },
            //这是表单的验证规则对象
            loginFormRules:{
                //验证用户名是否合法
                username:[
                        {required: true, message: '请输入登录名称', trigger: 'blur'},
                        { min: 3,max:10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                    ],
                 //验证密码是否合法
                password:[
                    {required: true, message: '请输入登录密码', trigger: 'blur'},
                    { min: 6,max:15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ]
            }
        };
    },
    methods:{
        //点击重置登录表单
        resetLoginForm(){
            console.log(this);
            this.$refs.loginFormRef.resetFields();
        },
        login(){
            this.$refs.loginFormRef.validate(async valid =>{

                //取反为false
               if(!valid) return ;
                //await
               const {data:res}= await this.$http.post('login',this.loginForm);
               console.log(res);
               if(res.meta.status!==200) return this.$message.error('登录失败');
               this.$message.success('登陆成功')
               //项目登录成功后的token保存到客户端的sessionStorage中
               window.sessionStorage.setItem('token',res.data.token);
               //通过编程式导航跳转到后台主页，路由地址是/home
               this.$router.push('/home');
            });
        }
    }
};
</script>

<style lang="less" scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    //圆角
    border-radius: 10px;
    //绝对定位
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
.avater_box{
    padding: 10px;
  //  border: 1px;
    border-radius: 50%;
    height: 130px;
    width: 130px;
    box-shadow: 0 0 10PX #dddddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    img{
        widows: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
    }
}
}
.btns{
    display: flex;
    //尾部对齐
    justify-content: flex-end;
}
.login_form{
    position: absolute;
    bottom: 0;
     width: 80%;
     padding: 0 40px;
}
</style>